Issue |
A&A
Volume 503, Number 2, August IV 2009
|
|
---|---|---|
Page(s) | 467 - 468 | |
Section | Extragalactic astronomy | |
DOI | https://doi.org/10.1051/0004-6361/200811212e | |
Published online | 02 July 2009 |
Erratum
The mass function of young star clusters in spiral galaxies
S. S. Larsen
Astronomical Institute, University of Utrecht, Princetonplein 5, 3584 CC, Utrecht, The Netherlands
A&A 494, 539-551 (2009), DOI: 10.1051/0004-6361:200811212
Abstract
An error was introduced in the equation used to calculate the number of clusters per age- and luminosity bin (Eq. (7)), affecting the predicted age distribution for a given cluster luminosity. Correction of this error leads to small adjustments in the relation between absolute magnitude and median age (Fig. 4) and in the model luminosity functions (Fig. 7). However, the changes are small enough that the results and conclusions of the paper remain unchanged.
Key words: Open clusters and associations: general - galaxies: star clusters - galaxies: spiral - errata, addenda
1 Erratum
An error was introduced when going from Eqs. (6) to (7) in the paper. While Eq. (6)

is correct for current cluster mass M and V-band luminosity LV, the current mass function is

for initial mass Mi (see also Gieles 2009). The factor



where, for example,
may be the Schechter function asassumed throughout the paper.
We may then write

for a star formation rate in clusters of CFR, mass-to-light ratio


In addition, the figures included in this erratum have been modified to use the Bruzual & Charlot (2003) tabulations of the mass fractions remaining after stellar evolution, rather than the parameterisation of
from Lamers et al. (2005). Neither of these corrections change the conclusions of the paper, but lead to small adjustments in Figs. 4 and 7. The luminosity function slopes quoted in Sect. 4 of the paper remain the same within 0.01.
References
- Bruzual, G., & Charlot, S. 2003, MNRAS, 344, 1000 [NASA ADS] [CrossRef] (In the text)
- Gieles, M. 2009, MNRAS, 394, 2113 [NASA ADS] [CrossRef] (In the text)
- Lamers, H. J. G. L. M., Gieles, M., Bastian, N., et al. 2005, A&A, 441, 117 [NASA ADS] [CrossRef] [EDP Sciences] (In the text)
![]() |
Figure 4:
The median absolute magnitude of the brightest ( top) and 5th brightest ( bottom) cluster versus median age. Results are shown for Schechter mass functions with |
Open with DEXTER |
![]() |
Figure 7:
Top: luminosity functions for a cluster sample with a Schechter mass function with |
Open with DEXTER |
All Figures
![]() |
Figure 4:
The median absolute magnitude of the brightest ( top) and 5th brightest ( bottom) cluster versus median age. Results are shown for Schechter mass functions with |
Open with DEXTER | |
In the text |
![]() |
Figure 7:
Top: luminosity functions for a cluster sample with a Schechter mass function with |
Open with DEXTER | |
In the text |
Copyright ESO 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.